Rod-packing.



No. 896,287. 7 PATENTED AUG. 18, 1908.

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ROD PACKING.

APPLICATION FILED MAY 23,1908.

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W ar-11m U ttot J/JgWi/klj No. 896,281. PATENTED AUG. 18, 1908. I

' J.PELT.

ROD PACKING.

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W1 hmooeo W W 61 rrrr M1 0 ,w I on i To all whom it may concern:

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JOSEPH FELT, OF LEAD, SOUTH DAKOTA.

noD-PAoKiNG.

Beit known that I, JOSEPH FELT, a citizen of the United States, residing at Lead, in the county of Lawrence and State of South Dakota, have invented a new and useful Rod- Packing, of which the following is a specification.

This invention relates to a metallic packing for steam engines, aircompressors, refrigerator plants, steam pumps'and the like and has for its object to provide a packing which will efiectually prevent the escape of air, steam or other fluid along the piston rod.

A further object of the invention-is to provide a packin ring, the construction and relative disposltion of the several parts of which is such as to equalize and render uniform the pressure of the ring sections upon the piston rod. 1

A further object is to provide a packing ring, the sections of which will accommodate themselves to the surface of the rod as the latter wears.

A further object is to provide a sectional cage or housing for the reception of the pack-- ing rings, and further to provide improved means for clamping the sections of the cage in assembled position.

A still further object of the invention is generally to improve this class of devices so as to increase their utility, durability and effi- Further objects and advantages will appear in the following description, it being understood that various changes 1n form, proportions and minor details of construction may be resorted to within the scope of the appended claims. i Y

the accompanying drawings forming a part of this specification: Figure 1 is a perspective view of a rod packing constructed in accordance with my invention, the cage sections being se arated to show the construction of the pac ing rings. Fig. 2 is a vertical sectional view showing the cagesections in assembled position. 'Fig. 3 is a detail sectional view showing the manner of clamping the cagesections' in assembled position. Fig- 4 is a plan view of one of the packing rings of one set removed from the cage. Fig. 5 is'a similar view showing the matlng ring of said responding parts in all of the figures of the drawings.

The improved packing forming the subject Specification of Letters Patent.

Application filed May 23, 1908.

Patented Aug. 18, 1908.

Serial No. 34 ,698.

with a segmental rib 12 which register, when the cage sections are assembled, to form an annular flange adapted to enter a correspondingly shaped seating groove 13 formed in the outer face of the cylinder head 11, as shown, thereby to assist in preventing accidental displacement of the cage.

Disposed at the juncture of the meeting faces of the cage sections 5 and 6 are grooves 14 adapted to receive suitable clamping de' vices preferably in the form of bolts 15 there being counter sunk portions or sockets 16 formed in the opposite faces of each cage section and communicating with the grooves 14', as shown, for the reception of the heads 17 and washers 18 of the clamping bolts.

The heads 17 and washers 18 are each provided with oppositely dis osed lu s 19, the inner faces of which are inc ined or eveled at 20 for enga ement with the correspondingly inclined wa ls of depressions or recesses 21 formed in the cage sections and communicating with the socket 16 so that when the clamping nuts 22 are adjusted the inclined faces of the lugs will bear against the inclined walls of the recesses and thereby firmly clamp the cage sections in assembled position.-

Suitable steel balls or pins 23 are also preferably embedded in the faces of one of the sections for engagement with correspondingly shaped seating recesses 24 formed in the adjacent faces of a mating section when said sections are assembled thereby to assist in preventing accidental separation of the cage sections The packing rings are preferably arranged in pairs orsets, one pair or set being disposed to receive a bolt 10,

there being wedge s aped fillin blocks or sections 28 interposed between t e sections with the oints 29 of the filling blocks dis-- posed at t e juncture of the parallel faces of each section 25, as best shown in Fig. 4 of the drawings.

The outer or peripheral edges of the sections 25 and 28 are formed with peripheral grooves 29 for the reception of a oontmuous coiled spring 30, whichlatter serves to normally and yleldably support the members 22 and 25 in engagement'with the outer surface of the rod 27, thereby to effectually prevent leakage or escape of the fluid along the rod.

The mating ring of each set comprises a plurality of se ental members 31, between the adjacent Ed es of which are interposed substantially triangular shaped filling members or blocks 32 having their inner faces concaved for engagement with the piston rod 27, the inner faces of the segmental sections 31 being also sli htly concaved to 'conform'to the curvature o the piston rod, there beinga spring, similar in construction to the spring 30, seated in the peripheral groove of the sections 31, and 32, as shown.

Attention is here called to the fact that the sections of one of the rings ofeach set are arranged to break joint with the sections of the mating ring of each set, a in 33 being extended laterally from one oi the sections25 for engagement with a correspondingly shaped socket 34 in one of the sections 31 of the mat-.

ing ring, thereby to properly position said rings and thus support the same so that the sections thereof will break joint, asbefore stated.

The sections or segments bfthe-packih rm s are preferably-formed of Babbitt meta an said ringsmay used inpairs or singly, as desired. I v

In assemblingthe parts the 'acking rings of eachset are first positioned their re spective chambers in one .of the cage sections after which the mating cage section is placed in position thereon and the bolts 15 extended through the grooves 14 with thewedge shaped lugs 19 seated in the adjacent irecesses 21,, after which the nuts 22 are adjusted thereby to clamp thesections around the rodand supporter hold the packing rings in operative position relative to the piston rod.

From the foregoing description, it is thought that the construction and operation of the device will be readily'understood' by those skilled in the art and further description thereof is deemed unnecessary. 7

Having thus described the invention what is claimed is:

1. The combination with a movable rod, of a sectional cage surroundin the rod and provided with an interior cham er, a ack-ing ring seated in said chamber, and a c amping seeps? cage sections together when the 3. The combination with a movable rod,

of a sectional cage surrounding the rod and rovided with an interior chamber, there bemg grooves formed in the adjacent faces of the cage sections, a packing ring seated in the chamber, threaded bolts seated in the grooves and provided with Wedge shaped ugs adapted toengage the cage sections, and

nuts engaging the threads on the bolts and bearing against the cage sections for clamping the same in assembled position.

4. The combination with a movable rod, of a sectional cage surrounding the rod and provided with an interior chamber, there being grooves formedin the mating faces of adjacent sections and sockets. communicating with said grooves, clamping bolts seated in the grooves andieach rovided with a head for engagement with t e adjacent socket, a washer carried by each bolt and seated in the oppositesocket, wedge shaped lugs carried bythe heads and washers, respectively,

for engagement with. the cage sections,v a

packing ring seated in the chamber, and nuts enga g the threads-on the'bolts for clampmg t e cage sections in assembled position. 1

5. The combination with a'movable rod, of

i a sectional cage surrounding the rod'and provided' with an interior chamber, there beinggrooves formed in the matingfaces of adjaa cent sections and recesses spaced f the c grooves and having inclined walls/therebeing sockets formed in the sections and com--' municating with the grooves and recesses, respectively, a packing ring seated in the chamber, a pin extending from the face; of one section and engaginga corres onding socket formed in the adjacent face'of t e mating section, clamping, bolts seated in the grooves, heads secured tothe clam ing bolts and seated in the adjacent soc ets said heads being provided .with wedge shaped lugs engaging the. inclined walls of the adjacent recesses, washers-surrounding the bolts and provided with corresponding heads having inclined lugs for engagement with the adjacent sockets and recesses, res ectively,

and clampingnuts engaging'the t eads on the bolts for drawing the cage sections together, I

6. The combination with a movable rod, of

a sectional cage surrounding the rod and prosections of each ring for yieldably supporting the same in engagement with the rod, and clamping devices disposed at the juncture of the casing sections and having wedge shaped members adapted to engage said cage sections for locking the cage sections in assembled osition. I

7. he combination with a movable rod, of a cage surrounding the rod and provided with an interior chamber, co-acting packing rings seated in saidchamber and eac formed of a plurality of sections, some of the sections of one of the packing rings having their opposite edges disposed parallel with each other, wedge shaped filling sections interposed between the sections and bearing against said parallel edges, the sections of the other ring eing disposed arallel with andarranged to bear agamst t e sections of the first mentioned ring, and means for clamping the cage sections in position on the rod.

8. The combination with a movable rod, of

a cage surrounding the rod and provided with spaced interior chambers, a plurality of airs of packing rings disposed within the 0 ambers, one of the packing rings of each pair being formed of segmental sections having op positely disposed parallel edges andintermediate wedge shaped filling blocks, the mating ring of each pair being formed of a plurality of sections arranged to break joint with the sections comprising the first ring, and a pin extending from one of the sections of one ring and engaging a socket formed in one of the sections of a mating ring for supporting the sections of both rings in break oint order.

' In testimony that I claim the foregoing as 'my own, I have hereto affixed my signature in the presence of twowitnesses. JOSEPH FELT. Witnesses:

JAMES L. OURRAN, J. W. OURRAN. 

